Photogrammetric ground control point quality evaluation method based on Monte Carlo test
US12203754B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2024 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Jul 2, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3852
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photogrammetric ground control point quality evaluation method based on Monte Carlo test relates to the field of photogrammetry technology. Firstly, aerial photographs and ground control points from a survey area are obtained, the ground control points are numbered, the aerial photographs are performed with point-placing and aerial triangulation densification. Secondly, a Monte Carlo test experiment is designed, a certain number of the ground control points are selected as control points with the rest as check points, ensuring each ground control point as the control point a certain number of times, and average errors of the ground control points are calculated. Thirdly, average values of the average errors of the ground control points are calculated, standard deviations of the average errors of the ground control points are calculated. Finally, a quality coefficient Q of each ground control point is calculated and evaluated according to quality evaluation standards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.